Lee Stott has a great summary blog post with all of the videos from the //BUILD 2013 conference that just happened last week.

It’s nice because filtering to this event and finding Windows Phone sessions on Channel9 is not the best and this is a great snap shot of all of the sessions you can view from the conference in one page. Also shows that Microsoft although focused on Windows 8.1 at this event, still had a sizable presence of Windows Phone Developer topics at this event.